Improvement in oil-burning steam-generators



0; w. KETGHUM.

Oil-Burning Steam Generators.

N0. 136,524. PatentedMarch4,l873.

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AM. PHom-umosRAPmcco. Mflvenmwmucms) UNITED STATES PATENT OFFICE.

OLIVER W. KETGHUM, OF TORONTO, CANADA. I

IMPROVEMENT IN OIL-BURNING STEAM-GENERATORS.

Specification forming part of Letters Patent No. 136,524, dated March 4, 1873.

To all whom it may concern:

Be it known that I, OLIVER W. KE'roHUM, of Toronto, Province of Ontario, in the county of York and Dominion of Canada, have invented a new and Improved Liquid Fuel Pressure Combustion Steam-Generator; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawing forming a part of this specification.

The invention consists in the method of burning liquid fuel, as coal-oil or petroleum, under a pressure of air from one pipe that supplies the supporter of combustion, and under pressure of air from another pipe upon the hydrocarbon which isused as the combustible. The air and the oil, being forced together from diiferent directions, are thus brought into contact, closely intermingled, and the combustion made complete, uniform, andperfect.

In the drawing, the figure is a longitudinal vertical section.

A A is a steam-boiler, having an ordinary steam-dome with safety-valve; O, a tank or receptacle for coal-oil, petroleum, or other liquid fuel 0 a pipe from an air-pump enterin g the tank 0'; G a flame-chamber in'boiler; and D D, a pipe leading from fuel-tank to flame-chamber 0 F F F are jet-pipes from the pipe D, entering the flame-chamber 0 E is a pipe from an air-pump, entering the flameehamber G I is a cock in same pipe, to regulate pressure of air. G G is a pipe curving upward from the flame-chamber above waterline in the boiler, and returning below watermark the length of the boiler, and returning again. It is perforated with holes, increasing in size and numliermwzfid'tmnd of the pipe. B B are concave projections from the boiler, fixed over the pipe G, to act as deflectors to throw back water cast up by ebullitions with in the boiler. B are deflectors in the dome, also to throw back water driven into the dome. H is a self-closing valve in the pipe G, to prevent the water in boiler having contact with flame-chamber when pressure is out off from air-pump. K is an air-tight door in flamechamber, opening inward, and containing a latch to fasten same; K, an ordinary mud drum, with cock to relieve boiler, when required. I M are cocks in the pipes leading from the air-pump, to regulate pressure of air and supply of fuel. N is an air-tight door in fuel-tank, opening inward, and with a latch. Also, the tank is provided with an indicator of glass, showing the amountof fuel and the rapidity of feed to the fire.

The mode of operation is as follows: The air, forced into pipe 0 drives the hydrocarbon up through the pipe D so that it is emitted. in jets from the pipes F F F into the flame-chamber 0 there it meets a corresponding supply of air, which has been forced through the pipe E. The hydrocarbon then burns as fast as supplied, and the heat and other products of combustion are carried through the flame-chamber, throughthe pipes G G, and discharged into the water of boiler.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-' The air-tight hydrocarbon-chamber O, connected with air-pump by a pipe, 0 and with the air-tight flame-chamber O by a pipe, D, having jetpipes F F F as and for the purpose described. OLIVER WILLIAM KETOHUM.

' Witnesses:

801.0 0. KEMoN, THOS. D. D. ()URAND. 

